Add an option to use "metal" as ANGLE_DEFAULT_PLATFORM.

Bug: angleproject:5632 Change-Id: Id470993a01609ace851372b1bbe01fee8cde274b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2684635 Commit-Queue: Stephen White <senorblanco@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

Add an option to use "metal" as ANGLE_DEFAULT_PLATFORM.
ad60c22d · Stephen White · Commit Bot · 831afbaf · ad60c22d
Commit ad60c22d authored Feb 09, 2021 by Stephen White Committed by Commit Bot Feb 09, 2021
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Display.cpp src/libANGLE/Display.cpp +7 -0

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--- a/src/libANGLE/Display.cpp
+++ b/src/libANGLE/Display.cpp
@@ -175,6 +175,13 @@ EGLAttrib GetDisplayTypeFromEnvironment()
    }
 #endif
+#if defined(ANGLE_ENABLE_METAL)
+    if (angleDefaultEnv == "metal")
+    {
+        return EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE;
+    }
+#endif
 #if defined(ANGLE_ENABLE_NULL)
    if (angleDefaultEnv == "null")
    {